add nano g1 (#1351)

* add nano g1

* Update platformio.ini

* Update configuration.h

* Revert platformio.ini to previous state

* Update configuration.h

* Update platformio.ini

Co-authored-by: Thomas Göttgens <tgoettgens@gmail.com>

platformio.ini

@@ -19,6 +19,7 @@ default_envs = tbeam
 ;default_envs = rak4631_5005
 ;default_envs = rak4631_5005_eink
 ;default_envs = rak4631_19003
+;default_envs = nano-g1
 ;default_envs = meshtastic-diy-v1
 ;default_envs = meshtastic-diy-v1.1
 
@@ -157,4 +158,4 @@ extends = nrf52_base
 board = rak815
 debug_tool = jlink
 upload_protocol = jlink
-monitor_speed = 115200 
+monitor_speed = 115200 

src/configuration.h

@@ -240,6 +240,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #define HW_VENDOR HardwareModel_T_ECHO
 
+#elif defined(NANO_G1)
+
+#define HW_VENDOR HardwareModel_NANO_G1
+
 #elif NRF52_SERIES
 
 #define HW_VENDOR HardwareModel_NRF52_UNKNOWN

src/mesh/generated/mesh.pb.h

@@ -61,6 +61,8 @@ typedef enum _HardwareModel {
     HardwareModel_DIY_V1 = 39, 
     /* RAK WisBlock ESP32 core: https://docs.rakwireless.com/Product-Categories/WisBlock/RAK11200/Overview/ */
     HardwareModel_RAK11200 = 40, 
+    /* B&Q Consulting Nano Edition G1: https://uniteng.com/wiki/doku.php?id=meshtastic:nano */
+    HardwareModel_NANO_G1 = 41, 
     /* Reserved ID For developing private Ports. These will show up in live traffic sparsely, so we can use a high number. Keep it within 8 bits. */
     HardwareModel_PRIVATE_HW = 255 
 } HardwareModel;

variants/nano-g1/platformio.ini

@@ -0,0 +1,8 @@
+; The 1.0 release of the nano-g1 board 
+[env:nano-g1]
+extends = esp32_base
+board = ttgo-t-beam
+lib_deps =
+  ${esp32_base.lib_deps}
+build_flags = 
+  ${esp32_base.build_flags} -D NANO_G1  -I variants/nano-g1

variants/nano-g1/variant.h

@@ -0,0 +1,30 @@
+// #define BUTTON_NEED_PULLUP // if set we need to turn on the internal CPU pullup during sleep
+
+#define I2C_SDA 21
+#define I2C_SCL 22
+
+#define BUTTON_PIN 36     // The middle button GPIO on the Nano G1
+//#define BUTTON_PIN_ALT 13 // Alternate GPIO for an external button if needed. Does anyone use this? It is not documented anywhere.
+#define EXT_NOTIFY_OUT 13 // Default pin to use for Ext Notify Module.
+
+// common pinout for their SX1262 vs RF95 modules - both can be enabled and we will probe at runtime for RF95 and if
+// not found then probe for SX1262
+#define USE_RF95
+#define USE_SX1262
+
+#define LORA_DIO0 26 // a No connect on the SX1262 module
+#define LORA_RESET 23
+#define LORA_DIO1 33 // SX1262 IRQ
+#define LORA_DIO2 32 // SX1262 BUSY
+#define LORA_DIO3    // Not connected on PCB
+
+#ifdef USE_SX1262
+#define SX126X_CS RF95_NSS // FIXME - we really should define LORA_CS instead
+#define SX126X_DIO1 LORA_DIO1
+#define SX126X_BUSY LORA_DIO2
+#define SX126X_RESET LORA_RESET
+#define SX126X_E22 // Not really an E22 
+// Internally the module hooks the SX1262-DIO2 in to control the TX/RX switch (which is the default for the sx1262interface
+// code)
+#endif
+